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Higher eukaryotes sense microbes through the perception of pathogen-associated molecular patterns (PAMPs). Arabidopsis plants detect a variety of PAMPs including conserved domains of bacterial flagellin and of bacterial EF-Tu. Here, we show that flagellin and EF-Tu activate a common set of signaling events and defense responses but without clear synergistic… (More)
Innate immunity is based on the recognition of pathogen-associated molecular patterns (PAMPs). Here, we show that elongation factor Tu (EF-Tu), the most abundant bacterial protein, acts as a PAMP in Arabidopsis thaliana and other Brassicaceae. EF-Tu is highly conserved in all bacteria and is known to be N-acetylated in Escherichia coli. Arabidopsis plants… (More)
The arbuscular mycorrhizal (AM) symbiosis represents the most widely distributed mutualistic root symbiosis. We report that root extracts of mycorrhizal plants contain a lipophilic signal capable of inducing the phosphate transporter genes StPT3 and StPT4 of potato (Solanum tuberosum L.), genes that are specifically induced in roots colonized by AM fungi.… (More)
As so far a singularity among opioid peptides, bovine beta-casomorphin-5 has been shown to display pronounced cardiatic activities. The gene sequence of a human beta-casomorphin-5, including plasmid insertion and fusion protein expression and cleavage instrumentary, has been synthesized by a manual phosphoramidite procedure and cloned in a bacterial system.